CVE-2007-1646: Multiple cross-site scripting (XSS) vulnerabilities in SubHub 2.3.0 allow remote attackers to inject arbitrary

Routine

MEDIUM 4.3DOWNGRADE

CVE-2007-1646 is a medium-severity flaw (CVSS 4.3) affecting subhub. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in SubHub 2.3.0 allow remote attackers to inject arbitrary web script or HTML via (1) the searchtext parameter to (a) /search, or the (2) message parameter to (b) /calendar or (c) /subscribe.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.1% (top 35%)
CISA exploited list	No
Published	2007-03-24
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: subhub

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2007-03-24 00:19 UTCPublished CVE record published
2026-06-16 22:38 UTCUpdated Record last modified

subhub subhub DOWNGRADE

Affected: 2.3.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.3.0

1. Check installed version

apt-cache policy subhub || rpm -q subhub || subhub --version

2. No fixed release: DOWNGRADE to a release before 2.3.0 (Debian / Ubuntu)

apt-cache madison subhub sudo apt install subhub=<VERSION_BEFORE_2.3.0> sudo apt-mark hold subhub

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list subhub sudo dnf downgrade subhub-<VERSION_BEFORE_2.3.0> sudo dnf versionlock add subhub

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2007-1646?

subhub: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2007-1646 being exploited?

CVE-2007-1646 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2007-1646 affect?

CVE-2007-1646 affects subhub. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in SubHub 2.3.0 allow remote attackers to inject arbitrary web script or HTML via (1) the searchtext parameter to (a) /search, or the (2) message parameter to (b) /calendar or (c) /subscri

How urgent is CVE-2007-1646?

Priority 31/100. No elevated risk signals yet.

References

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